Thill-coupling



. PATENTED' FEB. 23 1904;

3133 THILL COUPLING.

APPLICATION FILED JULY 6, 1903.

H0 MODEL.

UNITED STATES Patented February 23, 1904;.

PATENT OFFICE.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 753,083, dated February23, 1904.

Application filed July 6, 1903 Serial N0.164-.,368. (N0 model.)

To all whom it may concern:

Be it known that I, CHRISTIAN S. LEHMAN, a citizen of the UnitedStates,residing at Lawn, county of Leban on,and State of Pennsylvania,have invented a certain new and useful Impro venient in Thin-Couplings,of which the following is a specification. A

My invention relates to a newand useful improvement in thill-couplings,and has for its object to provide a coupling between the clips upon theshafts and the shafts which will allow for the shafts to be easilydetached, and-is also provided with a spring apparatus to take up wearupon the bolts as to prevent rattling of the shafts.

With these ends in view this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claim.

In order that those skilled in the art to which this inventionappertains may understand how to make and use the same, the constructionand operation will now be described in detail, referring to theaccompanying drawings, forming a part of this specification, in which-Figure 1 is a sectional view through one of the clips and the axle,showing one of the thills in elevation. the coupling .being in theposition when in use; Fig. 2, a similar view to Fig. 1, showing thecoupling in position to detach the shafts.

A represents the axle.

B is the ordinary clip, secured to the axle.

C is the bolt carried by the clips, to which the thills D of the shaftsare attached. Each of the thills D at the rear end is formed hook-shapedby means of the notch D. This notch D is adapted to embrace the bolt Gotthe clips. Pivoted underneath the rear end of each of the thills is acurved contact-retaining piece E, the free endbeing concaved, so as toconform to the shape of the bolt C, with which it comes in contact whenthe device is in operation. This retainer E is held in contact with thebolt 0 by means of the spring F, which is secured to the retainer at oneend,

the other end of the spring being curved, as

I", so as to throw the retainer E into spring contact with the bolt C,and thus help to retain the shaft in connection with the bolts, and atthe same time the spring will take up any lost motion caused by wearupon the bolts and prevent any rattling of the shafts. Pivoted to thefree end of the lever G is a light lever H, which normally rests uponthe free end of the spring F. By pressing the lever H downward thespring F will be pressed away from the free end of the lever G, and inthis manner the shafts may be uncoupled from the clips upon the axle.Thus it will be seen that by simply pressing the lever G forward afterthe thills have been placed upon the bolts the shafts will be coupled tothe clips and remain so until it is desired to disconnect the shaftstherefroin, which can be easily and quickly done by simply pressingdownward upon the lever H, which will throw the parts in the positionshown in Fig. 2, when the shafts can be easily detached.

Of course I do not wish to be limited to the exact construction hereshown, as slight modifications could be made without departing I fromthe spirit of my invention.

Having thus fully described my invention, what I claim as new and usefulis- In a thill-coupling, a pair of shafts, an axle, clips secured to theaxle, bolts carried by the clips, the rear end of the thills composingthe shafts being hook shape and notched, the notches adapted to embracethe bolts of the clips, curved retaining-pieces pivoted atone end to theunder side of the thills, the free end of the retainers being concavedand adapted to come in contact with the bolts within the notches,springs, one end of each being curved so as to form a socket, leverspivoted at one end to the under side of the thills, the free end of thelevers adapted to be forced into the In testimony whereofIhave hereuntoaffixed sockets of the springs so as to hold said springs my signaturein the presence of two subscribunder tension, and levers pivoted to thefree ing Witnesses.

ends of the other levers adapted to disengage CHRISTIAN S. LEHMAN. 5 thespring from the levers When the releasing- \Vitnesses:

levers are pressed downward, as and for the JOHN H. GORMAN,

purpose specified. ELIAS E. RISSER.

